70 year old female pt had htn 180/110.she was given olmesartan(20)+amlo(10) od...after 1 week her bp is 160/90..what to do now... she is symptomless.no history of DM..lipid profile fasting NORMAl,FBS-normal,TSH-5.61,NA/K- normal,urea/creatinine-normal,CBC-normal...